At times, however, by order of corps commanders, they have opened fire on the town of Petersburg. A number of the works having been inclosed and garrisons with artillery ordered to be left in them in case the army should move, the magazines in the forts designated were supplied with ammunition so that each gun should have 150 rounds, including that in the limbers, which in most cases were left in the forts. The ammunition for this purpose was taken from the wagons of the brigade ammunition train, and from those of the artillery park, the wagons being left empty so as to withdraw the ammunition at the shortest notice. The caissons of the batteries in the works were thus rendered disposable to take the place of these empty wagons in the brigade, and so complete the supply of ammunition for the batteries that should move. When the army was moved on 26th of October these works had their armaments left in them, so that the amount of artillery which accompanied the army was hut small.

For the services of the field artillery in the affairs on the Weldon railroad, 19th-22nd August, at Reams' Station on August 25, on Hatcher's Run October 26-28, and in the various operations of the cavalry, I respectfully refer you to the reports of the commanders of the troops to which the batteries were attached.

For want of complete returns I am unable to state the losses of the artillery in killed and wounded. The captures and losses of guns reported are as follows: Captured, 32 guns; lost, 25 guns; showing an excess of 7 guns captured over the number lost from May 4 to October 31, 1864.

Number

of guns.

Date. Corps. Capt Lost Where. Remarks.

ured .

May 5 Fifth -- 2 Wilderness Winslow's

battery (D),

1st New York,

Napoleons.

May 10 Second -- 1 South of Po Brown's Battery

River (B), 1st Rhode

Island,

Napoleon.

May 11 Cavalry 2 -- Yellow Tavern

May 12 Second 20 -- Spotsylvania

Court-House

June 17 Ninth 4 -- Petersburg

June 22 Second -- 4 ... do ... McKnight's,

12th New York

Battery, four

3-inch rifles.

June 29 Cavalry -- 8 Reams' Station Maynadier's

(K), 1st United

States, four

guns.

Fitzhugh's (C

and E), 4th

United States,

four guns. Four

Napoleons, four

3-inch.

July 28 Second 4 -- Jones' Neck

July 28 Cavalry -- 1 Deep Bottom Dennison's (A),

Second

Artillery, one

3-inch.

August Second 1 -- ..............

15a

August Second -- 9 Reams' Station Sleeper's, 10th

25 Massachusetts,

four guns.

McKnight's,

12th New York,

one gun.

Brown's (A and

B0, 1st Rhode

Island, four

guns.

Sept'b' Fifth 1 -- Poplar Grove

r 30 Church

Total --- 32 25

a August 15, one 8-inch howitzer captured by Second Corps at Deep Bottom, reported since this report was made out.

I have respectfully to call attention to services in this campaign of the commanding officer of the Artillery Reserve, Colonel H. S. Burton, Fifth U. S. Artillery; of Colonel J. C. Tidball, Fourth New York Foot Artillery and captain Second U. S. Artillery; Colonel C. S. Wainwright, First New York Light Artillery; Colonel C. H. Tompkins, First Rhode Island Light Artillery, chiefs of artillery of the Second, Fifth, and Sixth Corps,